sf_transform

中文说明

2022.07.07 update

Thanks @haoxian for remind，this lib sf_transform now is outdate.

The new solution is better, only add deterministic to erl_opts in rebar.config file:

{erl_opts, [
  deterministic
]}.

or setting by env：

ERL_COMPILER_OPTIONS="[deterministic]" rebar3 compile

The description for deterministic in erlang docs：

Omit the options and source tuples in the list returned by Module:module_info(compile), and reduce the paths in stack traces to the module name alone. This option will make it easier to achieve reproducible builds.

Introduction

If you use rebar3 to build your code and you hate the error log's filename is very long and also not clear,like this:

{file,"/home/xxx/work/erlang/test/tsf/src/tsf_sup.erl"}

in your shell:

17:09:28.275 [error] CRASH REPORT Process <0.227.0> with 0 neighbours exited with reason: {{test,[{tsf_sup,init,1,[{file,"/home/xxx/work/erlang/test/tsf/src/tsf_sup.erl"},{line,35}]},{supervisor,init,1,[{file,"supervisor.erl"},{line,294}]},{gen_server,init_it,6,[{file,"gen_server.erl"},{line,328}]},{proc_lib,init_p_do_apply,3,[{file,"proc_lib.erl"},{line,247}]}]},{tsf_app,start,[normal,[]]}} in application_master:init/4 line 134
17:09:28.275 [info] Application tsf exited with reason: {{test,[{tsf_sup,init,1,[{file,"/home/xxx/work/erlang/test/tsf/src/tsf_sup.erl"},{line,35}]},{supervisor,init,1,[{file,"supervisor.erl"},{line,294}]},{gen_server,init_it,6,[{file,"gen_server.erl"},{line,328}]},{proc_lib,init_p_do_apply,3,[{file,"proc_lib.erl"},{line,247}]}]},{tsf_app,start,[normal,[]]}}

=INFO REPORT==== 2-Mar-2019::17:09:28 ===
    application: lager
    exited: stopped
    type: temporary
===> Failed to boot tsf for reason {{test,
                                                [{tsf_sup,init,1,
                                                  [{file,
                                                    "/home/xxx/work/erlang/test/tsf/src/tsf_sup.erl"},
                                                   {line,35}]},
                                                 {supervisor,init,1,
                                                  [{file,"supervisor.erl"},
                                                   {line,294}]},
                                                 {gen_server,init_it,6,
                                                  [{file,"gen_server.erl"},
                                                   {line,328}]},
                                                 {proc_lib,init_p_do_apply,3,
                                                  [{file,"proc_lib.erl"},
                                                   {line,247}]}]},
                                               {tsf_app,start,[normal,[]]}}

Usage

Just add little setting config to your rebar.config:

{overrides, [
    %% For all apps:
    {add, [
        {deps, [sf_transform]},
        {erl_opts, [{sf_type, basename}, {parse_transform, sf_transform}]}
    ]},
    %% Or for just one app:
    {del, parse_trans, [
        {deps, [sf_transform]},
        {erl_opts, [{sf_type, basename}, {parse_transform, sf_transform}]}
    ]},
    {del, sf_transform, [
        {deps, [sf_transform]},
        {erl_opts, [{sf_type, basename}, {parse_transform, sf_transform}]}
    ]}
]}.

Then your world become clear and better:

17:16:39.427 [error] CRASH REPORT Process <0.535.0> with 0 neighbours exited with reason: test in tsf_sup:init/1 line 35 in gen_server:init_it/6 line 352
17:16:39.427 [error] CRASH REPORT Process <0.533.0> with 0 neighbours exited with reason: {{test,[{tsf_sup,init,1,[{file,"tsf_sup.erl"},{line,35}]},{supervisor,init,1,[{file,"supervisor.erl"},{line,294}]},{gen_server,init_it,6,[{file,"gen_server.erl"},{line,328}]},{proc_lib,init_p_do_apply,3,[{file,"proc_lib.erl"},{line,247}]}]},{tsf_app,start,[normal,[]]}} in application_master:init/4 line 134
17:16:39.427 [info] Application tsf exited with reason: {{test,[{tsf_sup,init,1,[{file,"tsf_sup.erl"},{line,35}]},{supervisor,init,1,[{file,"supervisor.erl"},{line,294}]},{gen_server,init_it,6,[{file,"gen_server.erl"},{line,328}]},{proc_lib,init_p_do_apply,3,[{file,"proc_lib.erl"},{line,247}]}]},{tsf_app,start,[normal,[]]}}


=INFO REPORT==== 2-Mar-2019::17:16:39 ===
    application: compiler
    exited: stopped
    type: temporary
===> Failed to boot tsf for reason {{test,
                                                [{tsf_sup,init,1,
                                                  [{file,"tsf_sup.erl"},
                                                   {line,35}]},
                                                 {supervisor,init,1,
                                                  [{file,"supervisor.erl"},
                                                   {line,294}]},
                                                 {gen_server,init_it,6,
                                                  [{file,"gen_server.erl"},
                                                   {line,328}]},
                                                 {proc_lib,init_p_do_apply,3,
                                                  [{file,"proc_lib.erl"},
                                                   {line,247}]}]},
                                               {tsf_app,start,[normal,[]]}}